Capacitor discharge welding

Capacitor Discharge Welding differs with respect to conventional resistance welding in that the energy of a previously charged capacitor is discharged onto the work piece by way of an impulse transformer. The advantages of this procedure are the very high welding currents, the steep current rise, the short welding time and thus the restricted zone of heat influence in the component due to the high energy concentration. Furthermore there will be no high current surges in the power supply, because capacitor charging will be relatively slow (within 0.5 – 2 Sec.). Most materials (even those which are hard to weld) may be bonded by means of this procedure.

Function description Powerpoint (only in german)